Hi, congratulation!
I had SSU back in the early 90's for a few years and did a full body off restoration before driving it down to Germany for a couple of weeks and visiting Bad Camberg, it never missed a beat. My brother in law and myself had lots of pre 67's during those days and both had a lot of hours and pounds invested in SSU 687.
I have lots of pics somewhere of the restoration and probably others, I will try to dig them out and let you have copies.
I have a copy of the Volksworld magazine that it was featured in ( front cover and 4 page article) as well as a a Belgium sales brochure for that model that I managed to buy at the time.
Are you keeping it or will it be for sale again??
Anything I can help with let me know? My own email address is
[email protected]Cheers
Karl